The Dow Jones Industrial Average roared to new records and ended with weekly gains for the fifth time in a row.
American, Delta and United boost unit revenue guidance as yields improve.
Traffic on U.S. airlines will climb 3.5% to 45 million passengers during the 21 days that start Dec. 16. U.S. airlines are the world's most profitable, a survey says.
The transportation department is considering whether to require airlines to provide their fares to all the websites that want them.